1338 Duponta
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| Discovery[1] | |
|---|---|
| Discovered by | Boyer, L. |
| Discovery site | Algiers |
| Discovery date | December 4, 1934 |
| Designations | |
| MPC designation | 1338 |
| 1934 XA | |
| Orbital characteristics[1] | |
| Epoch May 14, 2008 | |
| Aphelion | 2.5183301 |
| Perihelion | 2.0116179 |
| Eccentricity | 0.1118583 |
| 1245.0685343 | |
| 199.62778 | |
| Inclination | 4.81521 |
| 325.71508 | |
| 110.15206 | |
| Known satellites | 1[2] |
| Physical characteristics | |
| Dimensions | 8 km - 19 km[3] |
| 3.85 hr[1] | |
| 12.3[1] | |
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1338 Duponta (1934 XA) is a main-belt asteroid discovered on December 4, 1934, by Boyer, L. at Algiers. Since the albedo of this asteroid is unknown, the size can only be estimated as between about 8 km - 19 km,[3] based on the absolute magnitude (H) of 12.3.[1]
Binary system
Photometric observations in 2007 revealed a ~3 km satellite (diameter ratio of 0.23) with an orbital period of 17.57 hours.[2] Due to the similar size of the primary and secondary the Minor Planet Center lists this as a binary companion.[4]
References
- 1 2 3 4 5 "JPL Small-Body Database Browser: 1338 Duponta (1934 XA)" (2006-11-21 last obs). Retrieved 2009-10-13.
- 1 2 "Electronic Telegram". IAU Central Bureau for Astronomical Telegrams. Retrieved 2011-07-03.
- 1 2 "Absolute Magnitude (H)". NASA/JPL Near-Earth Object Program. Archived from the original on 26 October 2009. Retrieved 2009-10-12.
- ↑ "Satellites and Companions of Minor Planets". IAU / Central Bureau for Astronomical Telegrams. Retrieved 2011-07-03.
External links
- Orbital simulation from JPL (Java) / Ephemeris
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